3M™ Combination Filter CF32 ABEK2HgP3 R D DT-4046E* Suitable for use with certain 3M™ half and full-face tight-fitting respirators in negative-pressure mode as well as 3M™ Powered Air Respirator System PF-600 Series* Protects against organic and inorganic gases and vapours, as well as acid gases and vapours* Protects against mercury, ammonia, and organic ammonia derivatives* Protects against many kinds of particles, micro-organisms, and enzymes* A2 classification when used in negative pressure mode* A1 classification when used with approved powered air systemsEN 14387:2004:2008